Page 77 - Alliance US FULL

SERVICE TIPS

ACCUMULATOR SERVICING

1. The accumulator system should be PHOTO 1
checked as part of normal routine
maintenance. (See photo 1)

2. Ensure, with a running pump, that
you can see 190bar pressure on the
accumulator pump gauge.
1
Note: Big mouth pump pressure runs
at 200 bar with 4L bottle and 70mm
shift cylinders or 210 bar with 6L
bottle and 80mm shift cylinders.

2

(Right)
1. Accumulator Bottle
2. Gauge

3. Press any E-stop and the pressure FIGURE 1
should drop at a slow rate to 90 bar,
after which point it will rapidly drop
to zero. If it drops at the same rapid 200 bar
speed through both ranges, then the Pressure drops
bladder is ruptured and the Nitrogen “slow” in this zone
charge has been lost. (See figure 1)

If the E-stops are not working, or if
there isn’t any accumulator pressure,
then the Accumulator Dump Valve 100 bar
(or wiring) might be faulty.

Alliance Concrete Pumps offers
severe-duty cold-weather
accumulator bladder kits and can
assist you in the technique or actual
overhaul of your bottle. Nitrogen
test/refill kits are also available from
our parts department.
0 bar

Rapid drop from
90 bar

1.888.870.0908 www.allianceconcretepumps.com 1.888.584.7231

Alliance Concrete Pumps Inc. will not be held liable for any loss, damage, or injury relating to these procedures.